//
// Created by Kotake on 2021/8/15.
//
/*
 *         1
 *     2       3
 *  4     5  6    7
 * 8 9  10
 * */

#include <iostream>
#include <vector>
using namespace std;
vector<int> bfs(vector<int> a){

};

vector<int> dfs(vector<int> a){

};

int main(){
    vector<int> tree={1,2,3,4,5,6,7,8,9,10};
    return 0;
}